查询词典 absorption spectrum

The transmission spectrum and the absorption spectrum of alcohol shows that the characteristic absorption peak shifts with alcoholicity due to the molecular configuration. A multiple regression model was established based on the position, the intensity and the shape of the characteristic absorption peak, and used to detect alcoholicity. The predictive results show a linear relationship between predicted values and real values in sonic range, and can be used as a means to detect the alcoholicity.

通过对酒精透射光谱和吸收光谱的研究发现，其特征吸收峰随浓度不同发生漂移，从分子结构能级角度对其做了定性解释；根据部分稳定的特征吸收峰处不同波长点的吸光度，利用最小二乘法建立了多元线性回归模型，运用此模型实现了根据特征吸收峰波长的位置、强度、形状来预测酒精浓度，测定数据与样品浓度之间在一定范围呈良好的线性关系。

X-ray diffraction, infrared spectrum, Mossbauer spectrum, and absorption spectrum have been used to study allanite in some rare-earth deposit in this paper.

本文采用晶体场谱、穆斯堡尔谱、红外光谱和X射线衍射等多种手段研究褐帘石的谱学特征。

The absorption spectrum,inductively coupled plasma atomic emission spectrum and fluorescence spectrum of the crystals were measured.

测试了晶体的吸收光谱、电感耦合等离子体原子发射光谱和荧光光谱。

After acquiring the ultraviolet absorption spectrum and its first order derivative spectrum distributions of Avermectin B1 by using UV-2401 PC spectrophotometer and spectrum-measuring system,we found that coordinates of the peak A252.2 and the valley A256.8 are not disturbed by the different forms of preparations.

用UV-2401 PC紫外分光光度计及光谱工作站，以1 nm狭缝宽度，2 nm Δλ间隔，在190～400 nm波长范围内快速扫描采集阿维菌素B1紫外吸收光谱，拟合一阶导数光谱发现峰顶A252.2，和峰谷A256.8在波长坐标上的位置不受不同制剂干扰。

On basis of the color reactions of 4-(2-pyridine azo)-resorcin with copper, zinc and manganese, but the absorption spectrum of complex compounds which they created overlapped with each other seriously. Dealing with the spectrum data with the method of multivariate calibrations of chemometrics, we can simultaneously analyze the measured spectrum of mixture.

基于这三种金属离子均能和4-（2-吡啶偶氮）－间苯二酚发生显色反应，但所生成络合物的吸收光谱重叠比较严重，采用化学计量学的多元校正方法，解析了Cu(上标 2+)、Zn(上标 2+)、Mn(上标 2+)混合物的测量光谱。

The absorption spectrum center wavelength of dolomite is near 232 μm is shorter than 235 μm of limestone,and thus RBD7 and RBD8 can be employed effectively to identify dolomite and limestone,respectively. Felsic rocks show AlOH and Fe3+ absorption characteristics in the VNIRSWIR region,while the maficultramafic rocks show Fe2+ and Fe,MgOH absorption features,hence the use of different valence state of iron and secondary minerals can distinguish them:ASTER band2/band1 represent Fe3+ distribution,ASTER band2/band1 represent the Fe2+ distribution,RBD6 can estimate the AlOH mineral abundance. Psammitic/pelitic schist containing phengite,chlorite,stilpnomelane,as well as the weathered surface covered by clay minerals,exist characteristic absorption spectrum in the 221 μm(band 6),and has a high reflectance in 165 μm(band 4),while the blueschist/greenschist show high reflectance in the 221 μm(band 6),and it exit low reflectance in 165 μm(band 4),and blueschist/greenschist appear low ASTER band4/band6 ratio.

白云岩的CO2-3吸收谱带中心波长位于232〖KG*3〗μm，与灰岩的CO2-3 吸收谱带中心波长位置235 μm相比，具有向短波长方向移动的特点，据此可以利用RBD7、RBD8分别有效的识别白云岩和灰岩；长英质岩石显示AlOH和Fe3+ VNIRSWIR吸收特征，而基性超基性岩石显示Fe2+和Fe、MgOH特征，利用不同的铁价态和次要矿物可以区分它们：ASTER band2/band1代表了含Fe3+矿物分布信息、ASTER band5/band4代表了含Fe2+矿物分布信息、RBD6可以估计AlOH矿物的丰度；砂质/泥质片岩含较多的多硅白云母、绿泥石、黑硬绿泥石以及风化后表面覆盖的其它粘土矿物，在221 μm（band 6）存在有特征的吸收谱带，并且在165 μm（band 4）具有较高的反射率，而蓝片/绿片岩在221 μm（band 6）反射率较高，不具有明显特征吸收谱带，同时其在165 μm（band 4）反射率较低，因此蓝片/绿片岩ASTER band4/band6 比值低。

It is one of the most important method in chemical research. The course matches Instrument Analysis course. We set up 16 experiments: atomic absorption spectrum, atomic emission spectrum, atomic fluorescent, ultraviolet-visible absorption spectrum, infra-red absorption spectrum, and molecular fluorescent which are for photometric analysis; vottammetric analysis , coulometry analysis ,volt-ampere analysis and polarogarphy for electroanalytical chemistry; Gas chromatography and liquid chromatography for chromatographic analysis.

本实验内容与仪器分析理论课内容相配套，针对光化学分析开设了原子吸收光谱、原子发射光谱、原子荧光、紫外-可见吸收光谱、红外吸收光谱、分子荧光光谱等实验；针对电化学分析开设了电位分析法、库仑分析法、伏安和极谱分析法等实验；针对色谱分析开设了气相色谱和液相色谱分析等实验，共开设了16个实验。

The characteristics of oxygen absorption spectrum were emphasized based on the theory of gas absorption spectrum. This work was helpful to set up and actualize detection scheme.

文章在介绍气体光谱吸收理论的基础上，着重对氧气的吸收光谱特点进行了分析研究，这对我们建立和实施我们提出的检测方案具有一定的指导意义。

By simulating the absorption spectrum of molecule iodine absorption filter ranges from 470nm~550nm, this paper selects the absorption spectrum of molecule iodine absorption filter that satisfies the requirement of frequency discriminator in detecting system and ascertains the center emission frequency of laser emitter.

以基于边缘探测技术的激光雷达监测大气信道和海洋水下信道环境参数为例，通过仿真出碘分子吸收滤波器在470nm～550nm区间范围内的吸收光谱谱线，选择出合适的吸收谱线并确定发射激光信号的中心频率，并在此基础上，给出了满足探测要求的激光发射信号单稳频指标，为实际探测系统的设计奠定基础。

Researches on the characters of ultraviolet absorption spectrum and resonance scattering spectrum show that the strongest resonance scattering peak appears at 470 nm,and there is an absorption peak at 404 nm.

研究了核·壳复合纳米粒子的紫外可见吸收光谱和共振散射光谱特性，在470nm处有最强共振散射峰，在404nm处产生一个吸收峰。

This is not an ordinary box, which is used as a background picture of the dialog box, very pretty.

详细说明：这可不是一个一般的对话框，它是用图片作为背景的对话框，非常好看。

Conceal me what I am,and be my aid for such disguise as haply shall become the form of my intent.

遮掩我的身份，帮助我，我的面具将成为我的目的。